Material: + steel Color: black Product Size: 6.3x6.3x1.8 cm 1*Door closer pull box, 1*Transparent hook, 1*Small Wide Range Of Applicable Types：Suitable For Doors Or Doors With Stronger Closing Force. For Example: Screen Doors, Sliding Double Doors, Doors, Doors, Aluminum Alloy Glass Doors, Doors, Office Doors, Interior Doors, Kitchen And Bathroom Doors. Keep The Air Fresh: Effectively Isolate And Air In The Bathroom : It Can And From Entering The Room, And Kitchen Fumes From Entering The Living Room. Easy To Installation：Non- Glue Installation, After The Door Closer Is Glued, The Stickiness Is Very Strong And Will Not Fall Easily. And It Can Be Removed At Any Time When Not In Use, Without Damaging The Of The Object. Improve Efficiency: When Studying And Working, Avoid Repeatedly Getting Up And Opening The Door To Improve Study And Work Efficiency.